Supplier Page from Thermo Fisher Scientific for 1-Chloronaphthalene, tech. 85%, remainder 2-chloronaphthalene
4-Fluorobenzenesulfonyl chloride, 98% from Thermo Fisher Scientific
Eicosanoic acid, 98% from Thermo Fisher Scientific
Ethyl oxalyl chloride, 98% from Thermo Fisher Scientific
Ethyl propiolate, 99% from Thermo Fisher Scientific